Shoe bottom member and method of making the same



Dec. 22, 1936. J WHELTQN 2,065,463

SHOE BOTTOM MEMBER AND METHOD OF MAKING THE SAME Original Filed March24, 1932 4 Sheets-Sheet l llll" //v \/5/\/ 70m 313% w m Dec. 22, 1936. JM WHELTON 2,065,463

SHOE BOTTOM MEMBER AND METHOD OF MAKING THE SAME Original Filed March24, 1932 4 Sheets-Sheet 2 54 F g 70 Figrz nmuhmh Dec. 22, 1936. J,WHELTON 2,065,463

SHOE BOTTOM MEMBER AND METHOD OF MAKING THE SAME H Original Filed March24, 1932 4 Sheets-Sheet 3 Dec. 22, 1936. WHELTON 2,065,463

SHOE BOTTOM MEMBER AND METHOD OF MAKING THE SAME Original Filed March24, 1952 4 Shets-Sheet 4 Patentecl Dec. 22, I v

UNITED STATES PATENT OF'FICET SHOE BOTTOM MEMBER. AND METHOD OF MAKINGTHE SALE John M. Whelton, Peabody, Mass., assignor to United ShoeMachinery Corporation, Paterson, N. 3., a corporation of'New JerseyApplication March 24, 1932, Serial No. 600,921 Renewed October 14, 193532 Claims. (01.12-146) This invention relates to improvements in shoebreaks or bends as the shoe is'flexed in walking; bottom members andunits and to improved the punching of apertures either in thereinforcmethods of and means for use in making the same ing member or inthe insole, or otherwise recessand also to improvements in shoes andmethods of mg one of said parts, for receiving a shank stifshoemaking.Although by no means limited fener and maintaining it against. lateraldisthereto the invention in one of its aspects is hereplacement; theapplication of adhesive to one or in exemplified in itsapplication tothe manufacboth of the insole members, i. e., to the insole itture ofso-called cement process shoes and particself or the reinforcing member;and preferably ularly to shoes of that type having unusually nartheassembling of the insole members and the row shank portions and tothemaking of reinshank stiffener, prior to the simultaneous molding 10forced insole or shoe bottom members and units of said members upon thebeforementioned form. for such shoes. As shown, a metallic shankstiffener is employedv In a copending application, Serial No. 577,297,which initially has a longitudinal curvature corfiled November 25, 1931,in the name of Karl Kilresponding to that of the bottom of a last for aburmthere are disclosed and claimed certain imshoe in which the insoleis to be incorporated. 15 provements in shoe bottom'construction and im-After the insole and reinforcing member have proved methods of makingshoes and shoe botbeen molded to the longitudinal curvature of the tornunits, a purpose of which is to facilitate the last bottom and thereinforcing member has been lasting of the upper and the laying of theoutsole overmolde'd transversely as above described the so as accuratelyto reproduce the lines of the last insole is transferred to the last.The molded in- 20 in the shank portionof a shoe. sole unit which, ashereinexemplified, is made Among other objects, the present inventionaims very narrow in its shank portion for use in narstill further tofacilitate the attainment of the, row shank shoes, may be tacked oradhesivelyabove result. secured to the last and, as illustrated, anupper To theaccomplishment of this object, as hereis mounted upon thelast and its margins ce- 25 in illustrated, the present invention,considered in ment-lasted over the insole to bring their edges, oneaspect, provides an improvementin methods. into substantially meetingrelation in the narof making reinforced shoe bottom or insole unitsrowest portion of the shank of the insole, after in accordance withwhich a reinforced insole which an outsole, having a shank portionnarmember, or at least one of the component parts .rower than the shankportion of the insole, is laid 0 of such an insole member, is initiallyovermolded and, adhesivelysecured to the overla'sted upper transverselyin its shank portion to provide a: margins. As illustrated too, thereinforcing transverse, curvature in excess of that of the member may beapplied to either side of the inbottom of the corresponding portion of alast to solo. but the shank stiffener in every case is ilwhich themember isto be applied so as to 'al lustrated as interposed betweenthese parts so low for subsequent reaction or change of transthat nometallic element is present upon the outverse shape of the overmoldedparts, and thus -er side of the insole to interfere with the operatofacilitateconformance of the upper and outtionof lasting of the uppermargins, or with the sole to thelines of the last. -As illustratedhereformation of a satisfactory bond between the 40 in, the initialovermolding is effected by the use insole and the upper margins orbetween the 40 of a form having a molding surface like that of uppermargins and the outsole, such an arrangethe last bottom except that itstransverse curvement being particularly advantageous in the ture isgreater than that of the last bottom. manufacture of shoes the soles ofwhich have ex- Moreover, as illustrated and hereinafter deeeptionallynarrow shank portions as herein scribed, the pressure of the moldingoperation is shown. In accordance with an alternative meth- 45' utilizedto secure an adhesivebond between the of operation, also illustratedherein, the desired insole d t reinforcing member. contour of thereinforced insoles may be obtained The illustrated method involves alsothe cutby initially molding the reinforcing member upon ting out of areinforcing memberor heel and a form shaped to overmold the shankportion of shank piece of fibre, leather or the like, shaped the membertransversely, transferring the molded 50 in marg nal contour tocorrespond to that ofthe reinforcing member to an unmolded insole uponheel and shankportions of a shoe bottom mema last, and thereaftermoldingthe insole and seber or sole, for example, an insole and to havea I curing together the insole and the reinforcing front edge adapted tocoincide with the break member by the employment, for example, of a lineof the sole, i. e., the line along which the sole sole-laying machine ofany well-known type. 55

Considered in another aspect the invention provides an improved shoebottom unit resulting from the practice of the herein-described method.

The invention further consists in other novel method and structuralfeatures hereinafter described and pointed out in the claims.

In the drawings,

Figs. 1 and 2 are perspective views of an insole and a reinforcingmember, respectively, used in the manufacture of the improved reinforcedinsole;

Fig. 3 is a plan view illustrating one method of cutting out thereinforcing member;

Figs. 4 and 5 are perspective views of the insole and the reinforcingmember, respectively, as they appear after having been coated withadhesive for use in securing them together;

Fig. 6 is a perspective view of apparatus which may be used for applyingthe adhesive to the insole and to the reinforcing member;

Fig. '7 is a perspective view of a shank stiffener which is to beincorporated in the reinforced insole;

Figs. 8 and 9 are perspective views of the reinforcing member having ashank stiffener assembled therewith;

Fig. 10 is a section on the line X-X of Fig. 8;

Fig. 11 is a view in front elevation of an apparatus which may beemployed for the purpose of molding the reinforced insole;

Fig. 12 is a plan view of a portion of the device shown in Fig. 11,illustrating particularly the means employed for relatively locating theinsole and the reinforcing member and for locating said membersrelatively to the molding instrumentalities;

Fig. 13 is a cross-sectional view of the molding instrumentalitiesillustrating the manner in which they cooperate to mold an insole;

Fig. 14 is a detail sectional view taken along the line XIVXIV of Fig.12;

Figs. 15 and 16 are perspective views of the reinforced insole showingrespectively the upper and lower faces of the insole;

Fig. 17 is a detail sectional view taken along the line XVII-XVII ofFig. 16;

Fig, 18 is a perspective view of a reinforcing member which is ofsomewhat modified construction and which has been molded before beingapplied to an insole;

Fig. 19 is a cross-sectional view of a last to which a molded reinforcedinsole has been applied;

Figs. 20 and 21 are cross-sectional views similar to Fig. 19 butillustrating further steps in the manufacture of a shoe embodying thereinforced insole;

Fig. 22 is a perspective view of the upper side of a reinforced insoleof modified construction;

Fig. 23 is a perspective view of this modified insole showing the lowerside thereof;

Fig. 24 is a sectional view taken along-the line I XXIV-XXIV of Fig. 23;r

Fig. 25 is a longitudinal sectional view of a reinforced insoleillustrating another modification;

Fig. 26 is a sectional view taken along the line xxvr-xxvr of Fig. 25;and

Fig. 27 is a longitudinal sectional view of aportion of a reinforcedinsole illustrating a still fur-- ther modification.

Referring to the drawings, the improved insole unit or reinforced insole30, best shown in Figs.

15 and 16, comprises an insole proper 32, a re-- inforcing member,filler piece, or heel and shank piece 34 which may be made of anysuitable moldable material, such as fiber, leatherboard or leather, anda metallic shank stiffener 36. Both the insole 32 and the reinforcingmember 34 may -be out in any customary manner, for example,

they may be died out or they may be cut by a rounding operation. Thecutting of the reinforcing member 34 by a rounding operation is hereinillustrated in Fig. 3, wherein a knife 38 is shown in operative relationto a pattern 40 upon which the work is secured by means of a clamp plate42. The same pattern and knife may be employed for cutting the insole32, thereby insuring that both the insole and the filler piece shall beaccurately cut to the same contour. The shank stiffener 36 consists of anarrow strip of resilient metal which is initially curved longitudinallyto correspond to the curvature of the last to be used in making the shoein which the insole unit is to be incorporated.

In the finished shoe it is desirable that the front edge 44 of thereinforcing member 34 shall bear a predetermined relation to, hereinillustrated as coinciding with the break line of the sole, i. e., theline along which the sole bends or flexes when the shoe is used inwalking. To insure the establishment of this relation between the frontedge of the reinforcing member and the insole, as herein illustrated, agage 46 (Fig. 3) is providedupon one side of the pattern 40 forengagement with the edge of a piece of stock, such as the stock 48, fromwhich the reinforcing members are to be out. When insoles are to be cutthe pattern 40 may be reversed so as to present its opposite face to thework and thus to prevent the gage 46 from interfering with. properengagement of the pattern with the insole. In assembling the reinforcingmember and the insole, the

reinforcing member, which was engaged with one side of the pattern whilebeing cut may be made to coincide with the insole, which was engagedwith the other side of the pattern by the simple expedient of reversingeither the reinforcing member or the insole. Preferably, the marginalportion of the stock 48 from which the forward portion of thereinforcing members are to be cut is initially skived or beveled so thatthe front ends of the reinforcing members will be correspondinglybeveled to avoid the formation of an undesirable ridge in the outsole.

In order to provide for convenience in assembling and securing the shankstiffener in place in the reinforced insole unit, two apertures 50 maybe formed,=either in the reinforcing member or in the insole, forreceiving the opposite ends of the shank stiffener. Preferably, and asherein illustrated, the apertures are provided in the reinforcing memberand conveniently they may be formed by means of punches 52 carried bythe clamp plate 42, the punches being arranged to cooperate with thepattern 40 in cutting the apertures.

The broader aspects of my invention relating to the above-describedmethod of. assembling and securing the shank stiffener in place in theinsole unit, and certain features of reinforced insole constructionresulting from the practice of that method, constitute thesubiect-matterof my divisional application, Serial No. 78,690, filed May 8, 1936. f

Prior to the assembly of the shank stiffener with the reinforcing memberboth the reinforcing member and the insole are coated with adhesive andallowed to set long enough to render the adhesive in proper conditionfor securing the parts together. As herein illustrated, a coating of 7latex isapplied to the insole 32 by means comprising a lowercement-applying roll 54 (Fig. 6), and an upper roll 56 arranged tocooperate with the roll 54 to feed the insole between the rolls. Asshown, the roll 54 is arranged to dip into a. quantity of cementcontained in a reservoir 58, the upper portion of the roll projectingthrough an opening 69 in a plate 62 which constitutes the top of thereservoir and which also serves as a table for supporting the workbefore and after it is acted upon by the rolls. Advantageously, theinsole is fed in a lateral edgewise direction to the rolls and a gage 64is arranged to engage the heel end of the insole to determine thelongitudinal relation of the sole to the rolls so as to enable thecement to be applied only to the heel and shank portions of the sole. Asshown, the gage 64 is capable of being adjusted to vary the location ofthe forward extremity of the coated area. By placing the insole on theplate 62 in the proper angular relation relatively to the axes of therolls the operator may insure that the band of cement shall terminate ina line approximately parallel to the break line of the sole. The sameapparatus may be employed for coating the reinforcing members andconveniently the reinforcing members may be fed endwise between therolls. After being coated the insole and the reinforcing member appearas shown respectively in Figs. 4 and 5, the cement coatings beingindicated at 66 and 68, respectively.

Before the filler piece and the insole are assembled, the opposite endportions of the shank stiffener 36 are inserted through the apertures 58in the filler piece and the shank stiffener is adjusted longitudinallyto bring its forward end into a desired predetermined relation to,herein illustrated as substantially flush with the forward edge 44 ofthe filler piece. The insertion of the longitudinally curved shankstiffener 36 imparts a corresponding longitudinal curvature to thefiller piece 34, as shown in Figs. 8, 9 and 10. The shank stiffener 36has struck up at its rear end a single pointed prong 10 which, duringthe molding of the filler piece and the insole, is pressed into thefiller piece so as positively to hold the shank stiffener in place.Prior to the molding operation, however, the pressure of the pointed tipof the prong I0 against the filler piece serves to hold the shankstiffener against accidental endwise displacement.

The filler piece and the insole are now ready to be molded and securedtogether, and these operations are performed, as herein illustrated,

' by the co-operation of a rigid form I4 with a yieldable rubber pad I6(Fig. 11). As shown, the form I4 isshorter than the full length of theinsole and is adapted to operate upon the heel and shank portions of theinsole and the rear portion only of the forepart. The upper or workengaging surface of the form has the same longitudinal curvature as thatof the bottom of the last for the shoe in which the insole is to beincorporated. Transversely, however, the work engaging surface of theform is somewhat more sharply curved than the last bottom in order toprovide for overmolding of the shank portion of the insole unit.Obviously, such overmolding of the shank portion of the insole could notbe accomplished if the insole were to be molded upon the last. As shownin Fig. 13, the opposite sides of the form I4 are made flat tofacilitate the use of gage members in connection with the form forlocating the filler piece and insole relatively to the form. The use ofa form such as the form I4 in place of a last as one of the mold membersis further advantageous inasmuch as it avoids the tying upof a largequantity of lasts during the moldingof the insoles and thus avoidsunnecessary interference with the normal process of manufacturing theshoes. In making the forms, it is necessary to use only a single last,the forms being gradedup and down from the single last.

As herein shown, the form I4 and the pad I6 are incorporated in amachine embodying certain novel features of construction particularlyadapting it for use in applying the desired molding pressure.

The illustrated machine comprises a frame including two posts '78 (Fig.11), a stationary head 80 which is fixed to the upper ends of the postsI8 and carries the pad 18, and a reciprocatory cross head 82 which islocated beneath the head 80 and is mounted to slide on the posts I8 andwhich carries a block 84 for supporting the form I4. The pad I8 issecured to the under side of a carrier 86 which is mounted upon the head88 with provision for horizontal sliding adjustment relatively to theform I4 in a direction lengthwise of the latter.. As shown, the carrier86 is ar-,

ranged to slide upon a horizontal bar 88 fixed to the under side of thehead 80, the bar 88 being received in a groove in the carrier 86 andbeing held in the groove by means of gibs 98 which overlie the oppositelateral margins of the bar and serve to support the weight of the blockand the pad. A set screw 92 threaded in the carrier 86 is arranged toengage the edge of the bar 88 to secure the carrier 86 and the pad I6 inadjusted position with the contoured lower surface of the pad adapted toregister with the correspondingly contoured upperv surface of the formI4.

The block 84 is provided with a flat upper face 96 which serves tosupport the form I4 and the form is held in place on the block 84 andpositioned lengthwise relatively to the pad 16 by means of a post 98 onthe block which is arranged to enter a hole I08 in the under surface ofthe form. The block 84 is pivotally connected to the crosshead 82 sothat the form may adjust itself into the proper angular positiontoinsure full surface engagement of both the form and the pad with thereinforced insole. For-this purpose the crosshead 82 is provided withtwo spaced uprights I04 which are forked at their upper extremities toreceive studs I86 carried by the block 84. The uprights I04 are providedalso with lugs I 88 which are apertured to receive the posts and thus toafford the sliding connection between the crosshead and the posts. Theamount of tilting adjusting of the block 84 and the form I4 about thecommon axis of the studs I06 is limited by means of set screws H8 and H2which are threaded through lugs II 4 on the block and are arranged toengage opposite sides of the crosshead 82, suitable lock nuts II6 beingprovided to secure the set screws in adjusted position. The studs I I8,I I2 may be relatively adjusted to cause either the heel or forepart ofthe shoe bottom member on the form to be first engaged by the pad andthus to cause the molding pressure to progress lengthwise of the work ineither direction as may be ed'to engage opposite lateral portions of theheel f at the heel end of the form. The yoke II8 projects upwardly abovethe upper surface of the form in order that it 'may function also tolocate the filler piece and the insole with the edges of the latter invertical alinement with the sides of the form. In order thatthisupwardly projecting yoke shall not interfere with the downward movementof the pad the yoke is mounted with provision for vertical yieldingmovement relatively to the block 84. The yoke H8 is also capable ofbeing adjusted in a direction lengthwise of the form in order toaccommodate forms of different sizes. To permit the above-describedvertically yielding movements and horizontal'adjust- 'ment of the yokeN6 the latter is secured to a slide I20 (Fig. 12) mounted in verticalguideways I22 in a block I24 carried at the outer end of a horizontalstud I26 (Fig. 11) which is slidable in a bore I28 in the block 84. Astud I30 projecting from the block 84 extends between lugs I32 carriedby the block I24 to prevent the latter from turning about the axis ofthe stud I26. The slide I20 is acted upon by a spring I36 arranged tohold the slide normally in an upper position determined by engagement ofthe upper end of the slide with an adjustable abutment I38 carried bythe block I24. Horizontal adjustment of the block I24 for the purpose oflocating the yoke I I8 in accordance with. the size of the form isefiected by means of a hand screw I40 the shank portion of which isthreaded within a bore in the stud I26 and which is confined againstlongitudinal movement by means of a plate I42 one side of which isengaged by the head of the screw and the other sideby means of a collarI44 on the screw. The crosshead 82 is adapted to be reciprocated to movethe block 84 and the form I4 toward and from the pad 16 by any suitablemeans not herein shown.

Provision is also made for locating the insole 32 relatively to the formI4 and for locating the reinforcing member 34 relatively to the insoleand the form. For this purpose the yoke II8 which engages the heelportion of the form to determine the angular position of the form uponthe block 64, is arranged, as hereinbefore described, to engage also theedges at the heel ends of the insole and reinforcing member to locatethese parts lengthwise relatively to the form and to center the heelportions thereof. relatively to the form. In order to determine theangular relation of the insole and the reinforcing member to the formand to aline their edges with the edges of the form a pair of relativelyshort gage fingers I50 is provided for engagement with the oppositelateral edges of the sole and the reinforcing member, at the rear of theshank portions of the latter, and a pair of relatively long gage fingersI52 is provided for engaging the opposite lateral edges of the insoleand the reinforcing member at the narrow forward extremities of the.shank portions of the latter. The gage fingers I50 are pivoted uponvertical studs I56 which are carried by the vertically yieldable blockI24 and the gage fingers I52 are also pivoted upon the studs I56 beneaththe fingers I50, the arrangement being such that the members of eachpair of gage fingers are adapted to swing horizontally toward and fromeach'other. Each of the gage fingers I50 is provided at its freeextremity with vertically elongated work engaging surfaces I58 adaptingthe fingers to engage not only the edges of the insole and reinforcingmember but also to engage the sides of the form. The short gage fingersI50 are also provided with lips I60 which project inwardly beyond thesurfaces I56 to overlie the work and positively hold it In closeengagement with the bottom of the form. Rarward extensions I62 of theshort gage fingers I50 are adapted to be grasped and moved toward eachother by the operator-for the purpose of separating the work engagingextremities of the fingers to facilitate the placing of the insole andthe reinforcing memberupon the form. Downward extensions I64 of the-freeextremities of the fingers I50 are arranged to engage the long gagefingers I52 to separate the latter when the short fingers are separatedas above described. A spring I66 connecting the short gage fingers I50and a similar spring I61 connecting the long gagefingers I52 normallyhold the gage fingers in position to perform their gaging functions, theoperative positions ofthe gage fingers being determined by engagement ofthe free extremities with the opposite sides of the form.

The gage fingers I50 and I52 and the yoke H8 being mounted upon thevertically yieldable block I24 are capable of being depressed to avoidinterferenoe with the operation of the pad I6 when the latter is loweredto apply molding pressure to the work. For the purpose of depressing theyoke H8 and the gage fingers a vertically adjustable abutment III) iscarried by the pad block 86 and arranged to engage one of the pivotstuds I56. While the gage fingers and the yoke are being thus depressed,inclined cam surfaces I12 (Fig. 14) at the extremities of the fingersI50 serve, by engagement with the edges of the reinforcing member, toseparate these gage fingers sufficientlyto withdraw the lips I60 fromtheir overlapping relation to the reinforcing member, thereby exposingthe entire upper surface of that member for engagement with the pad I6.

The above described apparatus is not claimed herein, the same beingdisclosed and claimed in a continuation application, Serial No. 701,814,filed December 11, 1933.

In the use of the above-described apparatus, after a form of the propersize has been placed in position upon the block 84 the operatorseparates the gage fingers I56 and I52 by grasping the extensions I62 ofthe fingers I50 and then places an insole upon the form withthe coatedsurfaces of. the insole uppermost and thereafter places a reinforcingmember upon the insole with the coated surface of the reinforcing memberlowermost, care being taken to engage the rear edges of both the insoleand the reinforcing member with the yoke H8. The operator then releaseshis grasp upon the extensions I62 of the fingers I50 whereupon both setsof fingers I50,

. I52 are moved inwardly by their springs I66 and I6! until they engageopposite sides of the form I4. The insole and the reinforcing memberwill then eachbe positioned with its opposite edges alined with theopposite sides of the form. The machine is then operated to cause thepad I4 to descend and apply pressure to the work and thereby to securethe insole and the reinforcing member together and to mold them to thecontour of the form. Preferably the form may be shaped to overmold theshank portions of the insole and reinforcing member transversely to suchan extent that when the molding pressure is subsequently released andthe insole has been perthe appearance of the reinforced insole after it"has been molded is Shown in Fig. 15.

Upon release of the molding pressure the reinforced insole is removedfrom the molding machine "and the opposite lateral edges along'the shankportion of the insole are reduced by any suitable means not herein shownto provide the beveled'surfaces indicated at I80 (Fig. 16), the angle ofbevel being such as to blend with the profile of the last.

While both the reinforcing member and the insole may advantageously beovermolded transversely as above described it may in some instances bedesirable to overmold only one of these parts, for example, thereinforcing member and subsequently, after the overmolded member hasreacted so that its transverse curvature is the same as that of the lastwhich is to be employed, to assemble upon the last the initiallyovermolded member and the other member,.for example, the insole, and toutilize the pressure applied during the performance of a customary solelaying operation to effect the requisite molding of theinsole and thesecuring together of the insole and the reinforcing member. In carryingout such a practice/and particularly if the initially overmolded part iscomposed of fiber or leatherboard,

- it has been found that the fiber or leatherboard member, after beingadhesively secured to the even though one of the elements constitutingthe unit has not been overmolded. Fig. 16 shows a unit comprising areinforcing member 34 which has been overmolded upon a form, such as theform 14, and which has a shank stiffener 36 as sembled therewith. Anovel shoe bottom unit has thus been produced comprising a reinforcingmember and a shank stiffener in which the reinforcing member has beenmolded both longitudinally and transverselyto produce a surface contourcorresponding to that of the bottom and last to be employed in themanufacture of a shoe in which the shoe bottom unit is to beincorporated.

The reinforced and molded insole or shoe bottom unit is now ready to beplaced upon a last L upon which the shoe is to be made. The insole unitis tacked to the last in the usual manner (the insole being shown inFig. 19 as it appears after being tacked to the last) and, as shown inFigs. 20 and 21, an upper U is cement-lasted over the insole unit,staples I82 or other suitable fastenings being employed to secure theupper to the insole during the drying of the cement. Because 'of thefact that the shank stiffener is located between the reinforcing memberand the insole it will not interfere with the driving of the staples orother fastenings. In the narrow shank portion of the shoe, as hereinshown, the 'overlasted upper margins substantially meet and inasmuch asthere is no metallic stiffener located upon the outer surface of theinsole a satisfactory bond will be obtained between the upper and theinsole throughout the full width of the latter. Subsequently, when anoutsole Oislaid and secured by cement to the overlasted upper margins,as shown in Fig. 21, a perfect bond will be obtained between thoseelements throughout the full width of the outsole, even if the shoe hasthe particularly narrow or so-called fiddle shank formation shown in thedrawings. g

In Figs. 22, 23 and 24 there is shown a modified reinforced insoleconstruction in which the insole.

320 is provided with a lip I86 to which the upper of the shoe is to bestapled to hold the upper in place during the drying of cement employedfor United States Letters Patent No.- 1,932,545, granted October 31,1933, upon application of George Goddu. The particular lipped insoleherein showmhowever, embodies an improved lip construction disclosed inUnited States Letters Pat-,-

ent No. 2,017,856, granted October 22, 1935, upon application of GeorgeGoddu.

In the manufacture of this modified reinforced insole unit, thereinforcing member is applied,

" as shown at 3&9, to the upper or grain sideof the insole sothat,instead of being located between theinner and outer soles of thefinished shoe, it will be located at the upper or innerside of the innersole where, in the absence of a sock the wearer. In an insole of thistype, moreover, it is convenientto punch the'shank stiifenerreceivingapertures in the insole instead of in the re inforcing member, .asindicated at 590. The opposite ends of the shank stiffener 36 will, inthis instance, be threaded through the apertures 500 in the insole, thuscausing themain portion of the stifiener to be located between theinsole and the reinforcing member as in the form of insole here=inbefore described. The modified reinforcedainsole construction shown inFigs. 22, 23 and 24 and the improved method practiced in making such aninsole is not claimed herein, the same being part of the subject-matterof a continuation application, Serial No. 81,055, filed May 21, 1936.

Instead of securing the shank stiifener in place by inserting its endsthroughapertures either in the insole or in the reinforcing member thestiffener may be secured in place by tacks, the

"tacks, for example, being driven into the reinforcing member asindicated at 986 in Fig. 25, whereina stiffener 360 is' provided-thestiffener being fittedwiththe-usual'tack holes by having no attachingprong. To insure that the stiffener 860 shallhave no tendency to producean undesirable bulge or ridge in theoutsole a shallow groove I88 may beformed in the reinforcing I member to receive it as shownclearly in Fig.26.

It may be desirable to mold the reinforcing member 'by the use of theform E98 (thereby unit comprising only a reinforcing member and 'a shankstiffener as shown in Fig, 18.

In the use of such a'shoe bottom unit. afterassembly of the unit with aninsole upon a last bottom, the insole may be molded and adhesivelysecured to the reinforcing member by the use of a 'sole laying machineof customary construction, after which the usual shoemaking operationsmay beperformed to complete the In practicing the above modification of.

shoe.

lining, it will be, directly engaged by the foot of so I thehereinbefore-described method of shoemaking the adhesive attachmenttothe insole of the previously overmolded reinforcing member willeffectively prevent the insole from reacting upon release of the insolemolding pressure and thus the insole will permanently retain itstransverse-f may be provided in the reinforcing member 34 for receivingthe rear end of the shank stiffener 36 and an open notch or recess 50Imay be pro-- vided in the forward edge portion of the reinforcing memberfor receiving the front portion of the stiffener. The provision of thenotch or recess 5! will permit the front portion of the stiffener 96 tolie with its opposite sides substantially flush with the correspondingsides of the reinforcing member and thus to avoid the formation of anybulge due to the thickness of the stiffener in the immediate vicinity ofthe break line of the sole. As clearly shown in Fig. 18 the constructionof the recess or notch SM is such that the forward portion of thereinforcing member 34 is forked and the forward extremity of thestiffener 36 lies between the forwardly projecting portions of thereinforcing member which constitute the "arms of the fork.

A lipped insole of the type shown in Fig. 23 may be split from its heelend forwardly to a point in the vicinity of the ball line to form upperand lower sections or flaps, and between these sections may be disposeda molded reinforcing unit comprising a longitudinally arched shankstiffener and a reinforcing member made preferably of means of adhesiveto the sole sections I90 and I92. The reinforced insole constructionshown in Fig. 27 is not claimed herein, the same being part of thesubject-matter of a continuation application, Serial No. 82,283, filedMay 28, 1936.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

v 1. That improvement in methods of reinforcing 'insoles which consistsin forming a reinforcing member for the heel and shank portion of aninsole molding said reinforcing member to a longitudinal contourcorresponding to that of the bottom of the shank portion of a last whileovermolding the reinforcing member transversely to compensate forreaction of the molded material in such a manner that ultimately therewill be imparted to the reinforcing member a crosssectional contouraccurately conforming to that of the bottom of the last, andsimultaneously with said molding operations securing the reinforcingmember to an insole.

2. Thatimprovement in methods of reinforcing insoles which consists incutting out an insole, cutting out a reinforcing member for the heel andshank portions of the insole, assembling a shank stiffener with one ofsaid parts, overmolding said part to compensate for reaction of themolded material so as to impart to said part an ultimate contouraccurately conforming to that of the bottom of a last for a shoe inwhich the insole is to be incorporated, and securing the reinforcingmember and the insole-together with the shank stifi'ener interposedbetween.

3. That improvement in methods of making reinforced insoles whichconsists in cutting out an'insole, cutting out a reinforcing member forthe heel and shank portions of the insole; re-

cessing one of said parts to receive a shank stiffener and hold thestiffener against lateral edgewise displacement relatively to said part,assembling a shank stiffener with said part, overmolding said part tocompensate for reaction of the molded material so as to impart to saidpart an ultimate contour accurately conforming to that of the bottom-ofa last for a shoe in which the insole is to be incorporated, andsecuring said parts together with the stiffener interposed between them.

4. That improvement in methods of making reinforced insoles whichconsists in cutting out a full length insole, cutting out a reinforcingmember to impart thereto a marginal contour corresponding to that of theheel and shank portions of the insole, recessing said reinforcing memberto receive a shank stiffener, assembling a shank stiffener with saidreinforcing member, securing said reinforcing member to said insole withthe shank stiffener interposed between the reinforcing member and theinsole, and beveling the lateral edges of the shank portions of both thereinforcing member and the insole.

5. That improvement in methods of making reinforced insoles whichconsists in cutting out a full length insole, cutting out areinforcingmember to impart thereto a marginal contour corresponding to that of theheel and shank portions of the insole, recessing said insole to receivea shank stiffener, assembling a shank stiffener with theinsole,.securing the insole to the reinforcing member with the shankstiffener interposed between them, and beveling the lateral edges of theshank portions of both the reinforc ing member and the insole.

6. That improvement in methods of making reinforced insoles whichconsists in cutting out an insole, cutting out a reinforcing member forthe heel and shank portion of the insole, forming a shank stiffenerreceiving recess in at least one of said parts, applying a coating ofadhesive to at least one of said parts, assembling said parts with ashank stifiener interposed between them and located in said recess, andmolding the insole and reinforcing member to arch them transverselywhile utilizing molding pressure to secure them together.

7.. That improvement in methods of manufacturing reinforced insoleswhich consists in cutting a piece of stock to an outline determined byapattern to produce an insole, utilizing the same pattern in cuttinganother piece of stock to produce a reinforcing member for the heel andshank portions of the insole and gaging the position of said piece ofstock relatively to the pattern to locate the edge of the stock which isto constitute the front edge of the reinforcing member in a position tocorrespond to that of the break line of said insole, and securing saidinsole and said reinforcing member together with their rear .and lateraledges in alinement and with the front edge of the reinforcing membercoinciding with the break line of the insole.

8. That improvement in methods of manufacturing reinforced insoles whichconsists in cutting out an insole, cutting out a reinforcing member forthe insole having lateral edges of the same shape as those of the heeland shank portions of the insole and having a front edge arranged tocoincide with the break" line of the sole when the lateral edges of thereinforcing member are alined with the lateral edges of the sole,applying a coating of adhesive to at least one of said parts, assemblingwith the reinforcbottom of a last for a shoe in which an insole is to beincorporated and positioning the shank ing member a shank stiffenerlongitudinally curved to correspond to the curvature of the stiffenerwith its front edge flush with the front edge of the reinforcing member,assembling the reinforcing member and the insole'with their lateraledges in alinement with the shank stif-J fener located between saidparts, and molding said parts to adapt them to fit the'bottom of thelast,

. 9. That improvement in methods. of manufacturing shoes of the typehaving an insole and a molded reinforcing member for'the shank portionof the insole which consists in preparing one of said parts to receive ashank stifiener-and to. maintain the stiffener against lateral displacevmerit, assembling a shank stiffener with said part,

transversely overmolding at least one .of .said' parts and securing saidparts together with the shank stiffener between them, lasting an upperto the insole, and completing the manufacture of theshoe. r 1

10. That improvement in methods of manufacturing shoes of the typehaving aninsole and a reinforcing member for the shank portion of theinsole which consists in preparing one ofsaidf parts to receive a shankstifiener and hold it against lateral displacement, assemblingashankstiffener with said part, transversely overmolding the-insole andthe reinforcing member and.

securing said parts together with the shank stiffener interposed betweenthem to'produce a reinforced insole unit, transferring the insole unitto a last, mounting an upper upon the last, last-'- ing'the uppermargins to the insole, laying an 011115016, and rin the outsole to theoverlasted upper margins.

11. That improvement in methods of manufacturing shoes which consists insecuring to-- gether an insole, a shankfstiifener and a reinforcingmember. to makea reinforced insole, molding the shankportion of thereinforced insole to impart thereto a transverse curvature greater thanthat of the last upon which the shoe incorporating the reinforced insoleis to be made to allow for subsequent reaction'of the inside, andthereafter placing the reinforced and molded insole upon the last,lasting an upper and securing it to the insole, and completing the shoein a customary manner.

12. That improvement in methods of making shoes which consists intransversely overmolding the shank portion of a reinforced insole toallow for subsequent reaction of the molded material, and thereafterapplying the molded insole to a last, lasting an upper andsecuring it tothe insole, and completing the shoe.-

13. That improvement in methods of making shoes having reinforcedinsoles which consists in cutting out an insole, cutting out areinforcing member for the insole having lateral'edges of the same shapeas those of theme] and shank portions of the insole, applying a coatingof -adhesive to at least one of said parts, assembling said member andsaid insole upon a form having a molding face shaped like the bottom ofalast for a shoe in which the insole is to be incorporated except thatsaid faceis curved transversely to a greater extent. than the lastbottom, ap-

plying pressure to said parts to mold them to fit the form and to securethem together to make a reinforced insole, releasing the moldingpressure to permit reaction of the insole, transferring the insole tothe last, lasting an upper over the insole, and completing the shoe.

14. Thatimprovement in methods of making shoes'which consists inassembling a shank stifyfener and a-reinforcing member for the shankvportion of an insole, 'molding the reinforcing member to impart thereto.a transverse curvature greater than that of the last upon which the shoeincorporating the reinforcing member is to be made to allow forsubsequent reaction of thereinforclng member, assembling the moldedrein-' forcing member with an insole upon a last, molding the insole tofit the last, and completing the shoe.

an insole to a last, placing the assembled reinforcing member and shankstiffener .upon the insole with the shank stiffener between said -16.I'hatimprovernent in methods of shank portion, a reinforcing member forthe '15. That improvement in methods of making shoes which consists incutting a reinforcing member to the marginal contour of. the heel andshank portions of an insole, assembling a shank Q stiffener with thereinforcing member, applying a shank stiifener with the shankjstiifenerinter posed between the insole member and the rein-- forcing member,molding said memberstothe longitudinal curvature of a last bottom,thereafter assemblingsaid molded members with an upper on a last,lasting the upper and thereby bringing the -margins of the upper intosubstantially meeting relation in the .narrowestiportion' of the I shankof the insole, adhesively securing the upper margins to the insole, andadhesively securing to the overlasted upper margins an outsolehavlng ashank portion narrower than that of the insole. v

17. A shank stiffener unit comprising a reinsole, said member beingarched both longitudinally and transversely and having a notchvextending rearwardlyfrom its front edge and an aperture spacedrearwardly from said notch, and a shank stifiener having one endextending into' said aperture and its opposite end located in said notchwith its sides substantially flush with the surfaces of the reinforcingmember.

18. A shoe bottom unit comprising an insole member, an elongatednon-metallic reinforcing member secured to said insole member, both ofsaid members being molded to arch them longitudinally to correspond tothe longitudinal curvature of a last bottom and to arch themtransversely an amount not less than that of the 45 forcing member forthe shank portion of an intransverse curvature of the last bottom, oneof said members having a recess at one side to receive a shankstiffener, and a shank stiffener seated in said recess with'the outersurface of the 'shank stiifener substantially flush with the surface ofsaid member.

19. A shoe bottom unit comprising an elon- 7 gated reinforcing membermolded longitudinally to impart a curvature thereto corresponding to thelongitudinal curvature of a last bottom and overmoldedtransversely. toimpart thereto a transverse curvature not less than that of said lastbottom, said reinforcing member having an aperture therein, and anelongated stiffening element having a portion located in said apertureand held thereby against lateral displacement.

20. A shoe bottom unit comprising an insole, a reinforcing member forthe heel and shank portions of the insole adhesively secured to theinsole, the shank portions of the insole and the reinforcing memberbeing molded longitudinally to fit a last and being overmoldedtransversely, and a longitudinally arched shank stiffener locatedbetween the insole and the reinforcing member, the reinforcing memberbeing prepared to -receive the shank stiffener and hold it againstlateral displacement.

21. A shoe bottom unit comprising an insole, a reinforcing member forthe heel and shank portions of the insole adhesively secured to theinsole, the shank portions of the insole and the reinforcing memberbeing molded longitudinally to fit a last and being overmoldedtransversely, and a longitudinally arched shank stiffener locatedbetween the insole and the reinforcing member, the shank stiffener beingcountersunk within the reinforcing member. v

22. That improvement in methods of manufacturing reinforced insoleswhich consists in cutting out an insole, cutting out a reinforcingmember for the insole shaped to coincide with the contour of the lateraledges of the heel and shank portions of the insole and having a frontedge arranged to bear'a predetermined relation to the break line of theinsole when the lateral edges of the reinforcing member are alined withthe corresponding lateral edges-of the insole, assembling a shankstiffener with the reinforcing member and positioning the shankstiffener with its front edge bearinga predetermined relation to thefront edge of the reinforcing member, and

thereafter assembling and securing together the reinforcing member andtheinsole with their lateral edges in alinement and with the shankstiflener located between said parts.

23. That improvement in methods of making shoe bottom units whichconsists'in assembling an insole member, a shank stiffener, and a memberfor reinforcing the heel and shank portions of the insolemember, saidreinforcing member having a recess in its shank portion and said shankstiffener being positioned with its body portion interposed between saidinsole member and said reinforcing member and with one end portionlocated in said recess, and thereafter adhesively se curing the shankportions of said insole and said reinforcing member together and moldingsaid shank portions both longitudinally and transversely to conform tothe longitudinal and transverse curvatures, respectively, at the bottomof a last.

24. A shoe bottom unit comprising an insole member having alongitudinally and transversely molded shank portion, a member forreinforcing the heel and shank portions of said insole member having arecess in its shank portion for receiving a shank stiffener, saidreinforcing member having its shank portion longitudinally andtransversely molded to conform toth'e molded shank portion of saidinsole member and said members being adhesively secured together, and ashank stiffener having its body portion interposed between saidmembersand having one end portion located in said recess.

25. That improvement in methods of making reinforced insole units asarticles of manufacture which consists in cutting out an insole, cuttingout a reinforcing piece for the heel and shank portion of the insole,applying a coating of adhesive to at least one of said parts, assemblingsaid parts with a shank stiffener interposed between them, molding theshank portions of the insole and the reinforcing piece to arch them bothlongitudinally and transversely while utilizing the molding pressuretosecure them together, said molding operating including an overmolding ofsaid portions to compensate for reaction of the molded material, andthereafter beveling the l opposite lateral edges of the shank portionsof the insole and the reinforcing piece.

26. That improvement in methods of manufacturing shoes which consists insecuring together an insole, a shank stiffener and a heel and shankreinforcing piece to make a reinforced insole unit,

- molding the shank portion of said unit to arch the same bothlongitudinally and transversely, said molding operation including anovermolding of said portions to compensate for reaction of the moldedmaterial, beveling opposite lateral edges of the shank portions of theinsole and the reinforcing piece, and thereafter placing the moldedinsole unit upon a last, lasting an upper and securing it p to saidunit, and completing the shoe. I i

27. A shoe bottom unit comprising an insole, a reinforcing member forthe heel and shank portions of the insolesecured by means of adhesive tothe insole, the shank portions of the insole and piece.

28. A shoe bottom unit comprising an insole, a reinforcing member forthe heel and shank portions of the insole secured by meansof adhesive tothe insole, the shank portions of the insole and the reinforcing memberbeing molded longitudinally to conform to the longitudinal curvature ofthe bottom of a last and being overmolded transversely, and alongitudinally arched shank stiffener located between the insole and therein forcing member, the forward portion of the reinforcing memberbeing'forked thereby providing a notch, and the shank stifiener having apart of its rear portion embedded in the reinforcing piece and havingits-front portion located within said notch.

29, That improvement in methods of making reinforced insoles whichconsists in cutting out an insole, cutting out a reinforcing memberhaving the same outline as the heel and shank portions of the insole,forming two apertures'in the reinforcing member spaced apartlengthwiseofsaid member, applying a coating of adhesive to thereinforcing member and to the heel and shank portions of the insole,assembling a shank stiffenerwith the reinforcing member by inserting aninsole, cutting out a member for reinforcing the heel and shank.portions of the insole and forming apertures in said reinforcing memberfor receiving the opposite ends of a shank stiffener, inserting theopposite ends of a shank stiffener through the apertures in saidreinforcing member assembling the stifiened reinforcing member and theinsole with adhesive between them, and applying pressure to theassembled parts to secure them together and at the same time molding theshank portions of" the reinforcing member and the insole to arch themlongitudinally to correspond to the longitudinal curvature of abottom ofa last and to overmold them transversely to compensate for reaction ofthe molded material.

31. A shoe bottom unit comprising an insole and a reinforcing membersecured by means of adhesive to the heel and shank portions of theinsole and having two apertures spaced apart lengthwise of thereinforcing member, and a shank stiffener located between thereinforcing member and the insole and having its opposite end portionsconfined within said apertures, the shank portions of theinsole and thereinforcing member being molded longitudinally to fit a last and beingovermolded transversely.

32. That improvement in methods of making reinforced insoles whichconsists in securing together an insole, a reinforcing piece for theshank portion of the insole, and a shank stiffener, and molding thereinforcing piece and the shank portion of the insole to impart theretoa longitudinal curvature corresponding to that of the shank portion ofthe bottom of a last for a shoe in which said parts are to beincorporated and a transverse curvature in excess of that of said lastbottom portion to allow for change of transverse shape subsequently totake place in' said reinforcing piece and said insole portion.

JOHN M. WKELTON.

CERTIFICATE OF CORRECTION.

Patent No. 2,065,463. December 22, 1936 JOHN M. WHELTON.

It is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: Page 5?second column, line 45, for the word "by" read but; page 8, secondcolumn, line 7, claim 25, for "operating" read operation; and that thesaid Letters Patent should be read with these corrections therein thatthe same may conform to the record of the case in the Patent Office.

Signed and sealed this 9th day of March, A. D. 1937.

Henry Van Arsdale (Seal) Acting Commissioner of Patents.

